import fs from 'node:fs/promises';
import os from 'node:os';
import path from 'node:path';
import { eq } from 'drizzle-orm';
import { afterAll, beforeAll, describe, expect, it } from 'vitest';
import * as schema from '@/lib/db/schema';
import { getGameDb } from '@/lib/db/client';
import { PLANE_TYPES, SELL_FRACTION } from '@/lib/game/catalog';
import { POST } from './route';

let dir: string;

beforeAll(async () => {
  // Same pattern as app/api/state/route.test.ts: point the DB singleton at a
  // throwaway file (fresh module registry per test file → fresh singleton).
  dir = await fs.mkdtemp(path.join(os.tmpdir(), 'flight-sell-api-'));
  process.env.FLIGHT_DB_PATH = path.join(dir, 'sell.db');
});

afterAll(async () => {
  delete process.env.FLIGHT_DB_PATH;
  await fs.rm(dir, { recursive: true, force: true });
});

const post = (body: unknown) => POST(new Request('http://localhost/api/market/sell-plane', { method: 'POST', body: JSON.stringify(body) }));

describe('POST /api/market/sell-plane', () => {
  it('rejects a missing planeId and unknown fields with 400', async () => {
    for (const body of [{}, { planeId: 7 }, { bogus: 1 }]) {
      const res = await post(body);
      expect(res.status).toBe(400);
      expect(((await res.json()) as { error: string }).error).toBeTruthy();
    }
  });

  it('rejects an unknown id with 404', async () => {
    const res = await post({ planeId: 'ghost' });
    expect(res.status).toBe(404);
  });

  it('rejects selling the last remaining plane with 409 (seeded DB has only the starter)', async () => {
    const res = await post({ planeId: 'plane-starter' });
    expect(res.status).toBe(409);
    expect(((await res.json()) as { error: string }).error).toMatch(/last remaining/);
  });

  it('rejects selling a flying plane with 409', async () => {
    const { db } = await getGameDb();
    // A second, grounded plane so "flying" is the reason for rejection.
    await db.insert(schema.planes).values({
      id: 'plane-extra', model: 'atr72', status: 'available', fuel: 100, maxFuel: PLANE_TYPES.atr72.maxFuel,
      locationIcao: 'EDDF', destIcao: null, lat: 50.03, lon: 8.57, departureSimTime: null,
    });
    await db.update(schema.planes).set({ status: 'flying' }).where(eq(schema.planes.id, 'plane-extra'));

    const res = await post({ planeId: 'plane-extra' });
    expect(res.status).toBe(409);
    expect(((await res.json()) as { error: string }).error).toMatch(/flying/);
  });

  it('sells a grounded second plane for SELL_FRACTION of the catalog price', async () => {
    const { db } = await getGameDb();
    // The previous test left 'plane-extra' in the DB (now flying) — ground it.
    await db.update(schema.planes).set({ status: 'available' }).where(eq(schema.planes.id, 'plane-extra'));
    const cashBefore = (await db.select().from(schema.account))[0].cash;

    const res = await post({ planeId: 'plane-extra' });
    expect(res.status).toBe(200);

    const body = (await res.json()) as { account: { cash: number }; planes: Array<{ id: string }> };
    const payout = Math.round(PLANE_TYPES.atr72.price * SELL_FRACTION * 100) / 100;
    expect(body.account.cash).toBeCloseTo(cashBefore + payout, 6);
    expect(body.planes.map((p) => p.id)).not.toContain('plane-extra'); // row deleted
    expect(body.planes.map((p) => p.id)).toContain('plane-starter');
  });
});